Trap-door
Chamber's Etymological of the English Language · 1895 · p. 537
trap'-dOr, n. a door in a floor shutting like the catch of a trap. m fate, far mfi, hfer mine Treachery Trapeze, tra-pSz/, Trapezium, tra-ptS’zi-um, a plane figure having four unequal sides, no two of which are parallel one of the wrist bones a swing used in gymnastics. [Gr. trapes i on, dim. of trapeza, a table contr. either from tri-jxza, three-legged, or from tetia-peza, four-legged. Trapezlfonn, tra-p£z'i-form, adj. having thofortn of a trapeze. [Gr. trapeza, and Forxn.] Trapezoid, trap'e-zoid, «. a plane four-sided figure like a trapezium having two of its opposite sides parallel. [Gr trapeza, and eidos, form.] Trapezoidal, trap-e-zoid'al, adj having the form of a trapezoid. Trappings, trap'ingz, npl. gay clothes: ornaments, esp those put on horses. (.See Trap, to drape or adorn
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